1728874446 has 64 divisors (see below), whose sum is σ = 3764517120. Its totient is φ = 526176000.

The previous prime is 1728874439. The next prime is 1728874447. The reversal of 1728874446 is 6444788271.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1728874447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4561485 + ... + 4561863.

It is an arithmetic number, because the mean of its divisors is an integer number (58820580).

Almost surely, 2^1728874446 is an apocalyptic number.

1728874446 is an abundant number, since it is smaller than the sum of its proper divisors (2035642674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1728874446 is a wasteful number, since it uses less digits than its factorization.

1728874446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881.

The product of its digits is 2408448, while the sum is 51.

The square root of 1728874446 is about 41579.7360020479. The cubic root of 1728874446 is about 1200.2023839209.

The spelling of 1728874446 in words is "one billion, seven hundred twenty-eight million, eight hundred seventy-four thousand, four hundred forty-six".